Finding the Fourth Proportional to 1,789.85, 2,680.17 and 1,171.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.85 : 2,680.17 = 1,171.73 : x
2. Step 2: Convert to fraction form
   1,789.85/2,680.17 = 1,171.73/x
3. Step 3: Cross multiply
   1,789.85x = 2,680.17 × 1,171.73
4. Step 4: Simplify right side
   1,789.85x = 3,140,435.59
5. Step 5: Solve for x
   x = 3,140,435.59/1,789.85
6. Step 6: Final answer
   x = 1,754.58